fix nixpkgs rev for t2pkgs

flake.lock

@@ -340,6 +340,27 @@
         "type": "github"
       }
     },
+    "home-manager-unstable": {
+      "inputs": {
+        "nixpkgs": [
+          "nixpkgs-unstable"
+        ]
+      },
+      "locked": {
+        "lastModified": 1774561634,
+        "narHash": "sha256-3q1xsREjqdVIIwQQDZQ9y0YdBzP8gAxdwKoKnZSzJtU=",
+        "owner": "nix-community",
+        "repo": "home-manager",
+        "rev": "7c046c63ac3b467c1d589b99d531da5b6520825a",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "ref": "master",
+        "repo": "home-manager",
+        "type": "github"
+      }
+    },
     "hyprcursor": {
       "inputs": {
         "hyprlang": [
@@ -980,16 +1001,17 @@
     },
     "nixos-hardware": {
       "locked": {
-        "lastModified": 1774465523,
+        "lastModified": 1759582739,
-        "narHash": "sha256-4v7HPm63Q90nNn4fgkgKsjW1AH2Klw7XzPtHJr562nM=",
+        "narHash": "sha256-spZegilADH0q5OngM86u6NmXxduCNv5eX9vCiUPhOYc=",
         "owner": "NixOS",
         "repo": "nixos-hardware",
-        "rev": "de895be946ad1d8aafa0bb6dfc7e7e0e9e466a29",
+        "rev": "3441b5242af7577230a78ffb03542add264179ab",
         "type": "github"
       },
       "original": {
         "owner": "NixOS",
         "repo": "nixos-hardware",
+        "rev": "3441b5242af7577230a78ffb03542add264179ab",
         "type": "github"
       }
     },
@@ -1024,22 +1046,6 @@
         "type": "github"
       }
     },
-    "nixpkgs-master": {
-      "locked": {
-        "lastModified": 1773068446,
-        "narHash": "sha256-MCEmktH6AFJH8Pg1rBGB2Q0FhS5z5K87IsMbUU8uzHI=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "70b7278e2c0acc26ad3360551bf9c15c5ccc0acd",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
-        "ref": "master",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
     "nixpkgs-nixcord": {
       "locked": {
         "lastModified": 1773222311,
@@ -1056,33 +1062,49 @@
         "type": "github"
       }
     },
-    "nixpkgs-unstable": {
+    "nixpkgs-t2-firmware": {
       "locked": {
-        "lastModified": 1772773019,
+        "lastModified": 1759381078,
-        "narHash": "sha256-E1bxHxNKfDoQUuvriG71+f+s/NT0qWkImXsYZNFFfCs=",
+        "narHash": "sha256-gTrEEp5gEspIcCOx9PD8kMaF1iEmfBcTbO0Jag2QhQs=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "aca4d95fce4914b3892661bcb80b8087293536c6",
+        "rev": "7df7ff7d8e00218376575f0acdcc5d66741351ee",
         "type": "github"
       },
       "original": {
         "owner": "NixOS",
-        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "rev": "7df7ff7d8e00218376575f0acdcc5d66741351ee",
+        "type": "github"
+      }
+    },
+    "nixpkgs-unstable": {
+      "locked": {
+        "lastModified": 1774273680,
+        "narHash": "sha256-a++tZ1RQsDb1I0NHrFwdGuRlR5TORvCEUksM459wKUA=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "fdc7b8f7b30fdbedec91b71ed82f36e1637483ed",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixpkgs-unstable",
         "repo": "nixpkgs",
         "type": "github"
       }
     },
     "nixpkgs_2": {
       "locked": {
-        "lastModified": 1772822230,
+        "lastModified": 1774388614,
-        "narHash": "sha256-yf3iYLGbGVlIthlQIk5/4/EQDZNNEmuqKZkQssMljuw=",
+        "narHash": "sha256-tFwzTI0DdDzovdE9+Ras6CUss0yn8P9XV4Ja6RjA+nU=",
-        "owner": "nixos",
+        "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "71caefce12ba78d84fe618cf61644dce01cf3a96",
+        "rev": "1073dad219cb244572b74da2b20c7fe39cb3fa9e",
         "type": "github"
       },
       "original": {
-        "owner": "nixos",
+        "owner": "NixOS",
         "ref": "nixos-25.11",
         "repo": "nixpkgs",
         "type": "github"
@@ -1154,6 +1176,7 @@
         "cerulean": "cerulean",
         "grub2-themes": "grub2-themes",
         "home-manager": "home-manager",
+        "home-manager-unstable": "home-manager-unstable",
         "hyprland": "hyprland",
         "millennium": "millennium",
         "nix-flatpak": "nix-flatpak",
@@ -1161,7 +1184,7 @@
         "nixcord": "nixcord",
         "nixos-hardware": "nixos-hardware",
         "nixpkgs": "nixpkgs_2",
-        "nixpkgs-master": "nixpkgs-master",
+        "nixpkgs-t2-firmware": "nixpkgs-t2-firmware",
         "nixpkgs-unstable": "nixpkgs-unstable",
         "sddm-silent": "sddm-silent",
         "systems": "systems_3",

flake.nix

@@ -4,10 +4,12 @@
   inputs = {
     systems.url = "github:nix-systems/default-linux";
 
-    nixpkgs.url = "github:nixos/nixpkgs/nixos-25.11";
+    nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.11";
-    nixpkgs-unstable.url = "github:NixOS/nixpkgs/nixos-unstable";
+    nixpkgs-unstable.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+    # WARNING: don't update the revision! it breaks the t2-firmware from nixos-hardware...
+    nixpkgs-t2-firmware.url = "github:NixOS/nixpkgs?rev=7df7ff7d8e00218376575f0acdcc5d66741351ee";
 
-    nixos-hardware.url = "github:NixOS/nixos-hardware";
+    nixos-hardware.url = "github:NixOS/nixos-hardware?rev=3441b5242af7577230a78ffb03542add264179ab";
 
     home-manager = {
       url = "github:nix-community/home-manager/release-25.11";

hosts/MACBOOKI9/default.nix

@@ -6,7 +6,7 @@
 }: {
   imports = [
     ./hardware.nix
-    ../modules/core/t2-firmware.nix
+    ../modules/core/t2-firmware
   ];
 
   networking.hostName = "MACBOOKI9";

hosts/modules/core/t2-firmware.nix

@@ -1,34 +0,0 @@
-{
-  inputs,
-  pkgs,
-  ...
-}: {
-  imports = [
-    inputs.nixos-hardware.nixosModules.apple-t2
-  ];
-
-  nix.settings = {
-    trusted-substituters = [
-      "https://t2linux.cachix.org"
-    ];
-    trusted-public-keys = [
-      "t2linux.cachix.org-1:P733c5Gt1qTcxsm+Bae0renWnT8OLs0u9+yfaK2Bejw="
-    ];
-  };
-
-    apple.touchBar.enable = true;
-
-    # REF: https://github.com/NixOS/nixos-hardware/blob/master/apple/t2/default.nix
-    apple-t2 = {
-      # the macbook does not have an AMD dGPU (iGPU)
-      enableIGPU = false;
-
-      kernelChannel = "stable";
-
-      firmware = {
-        enable = true;
-        version = "sonoma";
-      };
-    };
-  };
-}

hosts/modules/core/t2-firmware/default.nix

@@ -0,0 +1,57 @@
+# REF: https://github.com/t2linux/nixos-t2-iso
+{
+  inputs,
+  pkgs,
+  t2pkgs,
+  ...
+} @ args: {
+  imports = [
+    (import inputs.nixos-hardware.nixosModules.apple-t2 (args // {pkgs = t2pkgs;}))
+  ];
+
+  nix.settings = {
+    trusted-substituters = [
+      "https://t2linux.cachix.org"
+    ];
+    trusted-public-keys = [
+      "t2linux.cachix.org-1:P733c5Gt1qTcxsm+Bae0renWnT8OLs0u9+yfaK2Bejw="
+    ];
+  };
+
+  # cerulean channels configuration
+  nixpkgs.channels.t2pkgs = {
+    source = inputs.nixpkgs-t2-firmware;
+    config = {
+      allowUnfree = true;
+      allowBroken = false;
+    };
+    overlays = [
+      (self: super: {
+        get-apple-firmware = super.callPackage ./get-apple-firmware.nix {};
+      })
+    ];
+  };
+
+  # environment.systemPackages = with base; [
+  #   python3
+  #   dmg2img
+  #   get-apple-firmware
+  # ];
+
+  # hardware = {
+  #   apple.touchBar.enable = true;
+
+  #   # REF: https://github.com/NixOS/nixos-hardware/blob/master/apple/t2/default.nix
+  #   apple-t2 = {
+  #     # the macbook does not have an AMD dGPU (iGPU)
+  #     enableIGPU = false;
+
+  #     kernelChannel = "stable";
+
+  #     firmware = {
+  #       enable = true;
+  #       version = "sonoma";
+  #     };
+  #   };
+  # };
+}

overlays/default.nix

@@ -24,8 +24,6 @@
       ];
     };
 
-    get-apple-firmware = pkgs.callPackage ../packages/get-apple-firmware.nix {};
-
     sddm-theme-corners = import ../packages/sddm-theme/corners.nix {
       inherit pkgs;
     };

snow.nix

@@ -20,9 +20,6 @@
         system = "x86_64-linux";
         groups = groups: [groups.desktops];
 
-        base = inputs.nixpkgs-unstable;
-        homeManager = inputs.home-manager-unstable;
-
         modules = with inputs; [
           grub2-themes.nixosModules.default
           nix-flatpak.nixosModules.nix-flatpak